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Re: DNSCurve vs. DNSSEC - FIGHT!

Masataka Ohta <mohta@necom830.hpcl.titech.ac.jp> Fri, 26 February 2010 09:21 UTC

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Date: Fri, 26 Feb 2010 18:23:23 +0900
From: Masataka Ohta <mohta@necom830.hpcl.titech.ac.jp>
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To: Florian Weimer <fweimer@bfk.de>
Subject: Re: DNSCurve vs. DNSSEC - FIGHT!
References: <874c02a21002231826y613b9f97ya83740ba240f7bf9@mail.gmail.com> <ABE739C5ADAC9A41ACCC72DF366B719D02C29D87@GLKMS2100.GREENLNK.NET> <a123a5d61002240700i4a68367tf901b91265f79da1@mail.gmail.com> <1267039830.9710.11106.camel@shane-asus-laptop> <alpine.LSU.2.00.1002242049510.16971@hermes-2.csi.cam.ac.uk> <p06240819c7ab46c7fbf9@[10.20.30.158]> <4B859F15.9080106@acm.org> <4B85B7E5.1000104@necom830.hpcl.titech.ac.jp> <201002242347.o1ONlt7L023898@drugs.dv.isc.org> <4B85BF52.7030004@necom830.hpcl.titech.ac.jp> <82fx4po0nb.fsf@mid.bfk.de>
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Cc: Paul Hoffman <paul.hoffman@vpnc.org>, IETF Discussion <ietf@ietf.org>
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Florian Weimer wrote:

>>As DNSCurve protection is like DH, it is subject to MitM attacks,
>>which is no different from simple nonce.

> I think the expectation is that you learn the server names (and hence
> their keys) of child zones from parents, under DNSCurve's
> cryptographic protection.  This is slightly different from plain DH.

No, it is not expected that gtld servers will become
"???????????????????????????????????????????????????.gtld-servers.net",
only to cause message size overflow.

						Masataka Ohta

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